for eating melon people To put it, it is the case of a “car standard”, such as Porsche, Lamborghini, and Ferrari’s track performance must be better than other brands. For true Petrol Head (fans), only “big tail, alloy rim, sports car is called the car!” (This golden sentence source is self-text D)
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It is undeniable that this sentence is really reasonful, because “big tail” is indeed one of the core elements of judging the control performance of a car track. This is mainly because the “big tail” can summon the mysterious power of nature to help the vehicle improve the curve speed! And this mysterious force is “under pressure”! Then how do we improve the pressure? Is there any direct relationship between the pressure and the weight of the body? The answer is in this article!
Simply, the lower pressure is air at high speed through the vehicle flap Additional weight brought. The extra weight will form additional pressure on the tire, causing the pressure between the tire and the ground to increase the bite strength between the tire and the ground. It is also because of this, the speed of the vehicle will directly determine the size of the lower pressure.
Under the case, the pressure is directly used in the compression of the pressure, such as the current F1 racing, at around 300km / h, The lower pressure is approximately 2.5 tons. Considering the minimum vehicle weight of F1 is 746kg, since theoretically, the F1 racing speed can be easily traveled on the “roof”.
Since the pressure is the additional weight generated by the airflow to help the vehicle through the corner, is it increasing to increase the vehicle’s weight? In real life, it is clear that the more light, the better the car, the better! Why is this?
I know that there must be such questions, even even if some car media teachers believe that the car can bring more Good under pressure (as shown above). It will be apparent that this logic is completely wrong! Then, “additional” weight, why the pressure can be controlled to the corner, while the vehicle is only dragging the vehicle control performance?
This is because there is a weight object, it will have inertia. For example, in the figure, the car is completely stopped after hitting the wall, but the giraffe in the car has not stopped moving forward because there is also the inertia of moving forward. This causes the neck of the giraffe to pour when the vehicle hits the wall. It can be imagined that the heavier the giraffe’s head is, then the larger angle of the neck is inclined in the moment of the vehicle hits the wall. This is actually the same as us, the body will rush forward, all are affected by inertia. 
In fact, in addition to the people’s or objects in the car, the weight of the vehicle itself will also be affected by inertia. That is, the “weight transfer” of the racing world is often said. When the vehicle accelerates, most weight of the body will move backward, increase the pressure of the rear wheel; when the brake, the weight of the body moves forward, increasing the pressure of the front wheel. Therefore, it is conceivable that in the turning process, the weight of the body moves in the reverse direction of the curve, thereby increasing the pressure of the outer wheel of the vehicle.
However, the problem is that the vehicle is in turn, even if the tire has changed, most weight or continued moving forward. At this point, larger car weight will bring more weights that continue to move forward, and the vehicle is bound to complete the turning action. It can be seen that the heavier the vehicle is, the more the weight moves forward,The control of the vehicle is naturally worse.
At this time, the pressure is discovered, since it is the force formed by the flap strikes, the weight of this stock “extra” is not Any inertia, it is possible to increase the pressure between the tire and the ground without any negative impact. Therefore, using ultra-light carriage + high pressure, it has become the best solution for improving the vehicle’s overall limit, which is also the core competitiveness of the F1 racing!
To understand how the pressure is generated, we only need I understand how the plane takes off the plane. There have been a misunderstanding here, which is the flying in the plane, in fact, is not realized by the reaction force generated by the fingeneratory “impact” air. Instead, the pressure difference of the air flow rate is different by the upper and lower ends of the flap. 
As is well known, the faster the air flow rate, the smaller the pressure generated, and even the negative pressure that can be sucked up. The slower the flow rate, the greater the opposing air pressure. The plane takeoff uses this feature, and the wing is designed to be above the air flow rate faster, and the air flow rate is slower. Eventually the air above the wing is adsorbed, and the “high air pressure” generated below will move to the low air pressure region above the wing to generate lift.
During the plane of the aircraft, since the speed of the air-drawn wing is not fast enough, it is necessary to release the flaps of the aircraft (red The frame portion), allows the wing to produce angle of attack (the angle of the air strike air), thereby increasing the current flow rate difference in the lower end of the speed downlight wing to help the aircraft leave the ground.
For automobiles, most of the models that can produce pressure, are “flipped” by just plane wings Principle implementation. and alsoThat is to make the fins above the fins, the pressure is strong, and the flap is fast, and the pressure is small, thereby producing the pressure. However, because the speed of the car is much slower than the aircraft, usually the air fin needs to add a certain angle of attack to increase the air flow rate.
Although it is said to increase the pressure to the vehicle finger, the side effects of this practice will increase resistance, not as complete. The method of using the flap flow rate is good. At the same time, if there is no attack, the air flow after the air is cleaner, and there is no more chaotic flow, thereby interferes with the work efficiency of other air and power kits. This also gives us an enlightenment, it is not possible to determine the underlying pressure of a car in a single angle.
At present, the lower pressure of a car is mainly composed of three aspects, which are front wings, tail and tail diffusers, respectively. The front wing (front shovel) of the vehicle is used to improve the lower pressure of the front wheel. At the same time, since the front wing is the first place to contact air, the front wing will also have a gas stream, which in turn is heat-dissipated, intake, and the rear finger is caused. Because the angle of the front wring is not too large, the external effect is to promote the airflow, which does not produce a vacuum zone, so the front wing does not have a great impact on the speed of the vehicle.
The role of the tail is naturally a lower pressure of the tail of the vehicle. Although a larger car lower pressure will make the vehicle more tend to stabilize in the bend. However, if the hierarchy is too large, there will be a serious pushing phenomenon and affect the speed of the vehicle.
Among them, the push head will result in the larger the rear tail angle, the larger the lower pressure of the car, the gripping force of the front wheel of the vehicle will be relatively reduced, and will eventually lead to the head. The rapid decrease is because the tail is a member that the vehicle is finally exposed to the air, and the rear does not continue to carry the carrier of the air, so the airflow will generate suction “vacuum zone” after the end of the tail, thereby increasing the moving resistance of the vehicle forward . It is to know that the greater the tail angle, the higher the speed, the suction of the “vacuum zone” will be moreLarge, the lower the speed.
The last “tail diffuser”, although there is a “tail” in the name, but in fact, the tail diffuser is A system throughout the body. It is usually started from the middle of the body, and the gas flow is dredied backwards. Usually, the higher the level, the higher the starting point of the tail diffuser, the more flattering the bottom. The reason why the flat car is used, because the more flat, the speed passes the speed, then according to the law of high pressure high pressure, the air pressure between the bottom and the ground will decrease, and then The effect of adsorbing the vehicle in the ground is generated, that is, the lower pressure of the change. The role of the tail diffuser is to quickly discharge the air in the bottom of the air inverted, thereby improving the flow efficiency of the bottom air.
The last “tail diffuser”, although there is a “tail” in the name, but in fact, the tail diffuser is A system throughout the body. It is usually started from the middle of the body, and the gas flow is dredied backwards. Usually, the higher the level, the higher the starting point of the tail diffuser, the more flattering the bottom. The reason why the flat car is used, because the more flat, the speed passes the speed, then according to the law of high pressure high pressure, the air pressure between the bottom and the ground will decrease, and then The effect of adsorbing the vehicle in the ground is generated, that is, the lower pressure of the change. The role of the tail diffuser is to quickly discharge the air in the bottom of the air inverted, thereby improving the flow efficiency of the bottom air. 
Since the pressure benefits produced by the flaps, then Can we improve the speed limit of the human car movement by increasing the end of endlessness? First give the answer: No! As for why, please continue to see!
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For the aircraft, the larger the size of the wing, the greater the strength of the aircraft. Therefore, for a racing car that flips the aircraft wings, if the installation size is larger, the pressure should be larger. But unfortunately, the size of the size of the motorcycle and the lower pressure is not an equivalent relationship. In other words, when the size of the air fasteper is large enough, the change in the lower pressure is not that obvious. What’s more, the extra resistance, body weight, body width of large sizes, also requires a larger, and heavier math engine to overcome.
In addition to the size of the hollow kit, the pressure level is unacceptable, attack The angle (angle of the flap) also does not equal the proportion to the lower pressure of the vehicle. This is very similar to the aircraft at the angle of attack. Although a larger angle of attack can significantly improve the air of the vehicle, when the angle is large enough, the air will significantly reduce the flow rate like hit the wall. At this time, the lower pressure generated by the fin is not as good as a small attack. status. Because of this, the gang attack of the general car will be set small.
When the pressure under the vehicle is greatly improved, the vehicle tire is in the curve. The horizontal G value that is affirmed will also increase, which is undoubtedly a huge test for the tire wall and the tread’s tolerance. This also means, even if the pressure can be infinite, but in the current tire technology, they will also encounter bottlenecks. 
Although the pressure can be referred to as a nature, For our daily live households, the lower pressure is too far away from us. The primary reasons are that these components that can produce the pressure are really difficult to meet the standards of the road. With the safety of the car collision regulations, the safety of the car is, like the large-scale standard, the light is already buried in history.The grave. It is understood that sharp and exposed aerodynamic kits, naturally unable to pass the harsh collision regulations.
Further, in addition to establish a real negative pressure while driving at high speed, the vehicle is adsorbed on the ground, except for the tail The diffuser and the flatness of the bottom of the vehicle are also required to have a lot of requirements for the ground gap of the vehicle. Generally, the lower the ground gap, the faster the air flow rate, the greater the adsorption force generated. It can be found for our daily live households, and the low chassis is obviously unable to take into account daily buyers, and the pressure naturally does not talk.
In the end, those performance vehicles that use scenes on the road, their air kinetics, in fact, in order to travel at high speed When the under pressure is used to reduce the lift of the vehicle, not the control of the vehicle. After all, like the Civic Type-r is exaggerated, the ultimate pressure is less than 66 kg, and it is not possible to bring too much help to the high-speed handling of the vehicle.
Further, in the case of ultra-high speed, it is not existed in the daily roads in the daily road. If you have seen Top Gear, the ninth season of the mole test drive Renault F1 racing, the episode will definitely understand that the excessive passage speed will “scare the urine”, but if you slow down, the pressure is insufficient. To make the vehicle through the corner. This is obviously not a general driver can make things in public roads, so the under pressure will not help everyday handherapy.
Finally, the lower pressure also has a high requirement. This is mainly because the heavier the vehicle is, the greater the forward inertia, the higher the pressure demand to help the vehicle into the bend. So usually, the model with the lower pressure is generally not too heavy, and the internal comfort configuration of the vehicle will naturally be too high. And this is obviously in violation of the daily tutaneousness of the degree of richness. In summary, householdThe car basically has no damage to the underwater pressure generated by the air suite. 
Air kinetics is actually an extremely high degree of discipline, even a lot The high-cost sports car is just using the active tail to assist the brakes. Therefore, for ordinary household cars, the lower pressure will not affect our daily driving. In this case, everyone is impossible to improve the performance of the vehicle! Of course, if you have the demand for the water bottle, it is another matter!